共查询到20条相似文献，搜索用时 125 毫秒
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电视气象节目中纪实手法的运用 总被引：7，自引：0，他引：7
通过对电视气象节目的特点进行分析，结合实际工作阐述了纪实手法的运用对增强节目可信度和可视性、提升艺术品位等方面的作用，并谈了纪实手法的具体运用方法，以期对电视气象节目质量的提高有所促进，达到良好的传播效果。 相似文献
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浅析省级电视气象节目的基本元素与表现形态 总被引：5，自引：3，他引：2
通过对广西省一级的多套电视气象节目进行了粗浅的分析,结合国家级节目以及其他兄弟省市的电视气象节目,总结出了省一级电视气象节目所具备的一些基本元素和主要的表现形态. 相似文献
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针对电视气象节目中图片素材的选用,总结了静态图片素材的选择和运用中需要注意的问题。认为编辑人员的思想素质和审美意识高低会直接影响到电视天气预报节目的质量,适当运用美学知识,能够使节目的观赏性大大增强。 相似文献
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针对电视气象节目中图片素材的选用,总结了静态图片素材的选择和运用中需要注意的问题。认为编辑人员的思想素质和审美意识高低会直接影响到电视天气预报节目的质量,适当运用美学知识,能够使节目的观赏性大大增强。 相似文献
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虚拟演播室技术的发展为电视气象节目提供了广阔的发展空间,本文从虚拟演播室的概况和技术发展入手,分析了基于虚拟演播室技术的电视气象节目的特点和我们面临的挑战,并提出节目初步构想,以期对电视气象节目尽早引入虚拟演播室技术以及节目策划起到抛砖引玉的作用。 相似文献
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1993年我国气象节目主持人首次走上电视荧屏,电视气象节目主持人正式诞生.随着社会的进步,人民生活品质的提高,人们越来越重视精神文化,讲究生活品位,对气象节目主持人的要求也越来越高,加之现在千篇一律的气象节目充斥着人们的眼球,观众越来越渴望看到精细化的天气预报和气象信息的同时,也希望看到是一个独具特色、个性鲜明的气象节目主持人.这就要求电视气象节目主持人在展现自我,赢得观众关注,树立主持人的个人风格,展现主持人的个人魅力的同时,有助于打造一个强势的电视气象节目品牌. 相似文献
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随着人民群众生活水平的日益提高，每天2、3分钟的电视天气预报节目已不能满足广大电视观众的要求,开设气象频道或者类似的气象电视台，是气象部门对公众服务的必然趋势。专题类电视气象节目将是其中重要的内容。特别是我国加入WTO以后，将面临国外媒体的严峻挑战。从这一认识高度出发，阐述了专题电视气象节目的创意、定位并揭示了这类节目的特点和一般天气预报节目的异同，为今后制作各类专题电视气象节目奠定基础。 相似文献
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重点介绍了盘锦湿地生态系统野外观测站建立的背景、研究定位与研究方向,主要观测场及观测仪器设备,已有基础数据积累和科研任务等。在此基础上,提出了未来盘锦站应在建设目标、人才队伍建设及规范管理方面的重点工作,为将研究站建设成为生态气象监测示范与技术支持基地、研制生态气象业务评估方法与模型的平台、生态气象业务人才培养基地以及作为地球系统科学前沿研究的孵化器,最终成为生态学和资源、环境科学等相关学科的发展提供野外试验和研究平台提供保障。 相似文献
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将电视节目结构设计理论与实际工作相结合,分析目前国内电视气象科普片在结构设计方面的不足,并提出一些比较实用的设计思路。 相似文献
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Abstract Project-based emission reduction or ‘offset’ programs are being implemented widely, from the CDM (Clean Development Mechanism) to corporate voluntary efforts and municipal and state-level activities. Additionality assessment remains a central and persistent challenge in all programs. Concerns have been raised with methods currently used, such as investment analysis, barrier analysis, and performance thresholds. They have been variously critiqued for high costs, resistance to standardization, weak environmental integrity, and susceptibility to gaming. Technology penetration rates provide another means to infer additionality, and could be a potentially useful complement to other methods. The notion is that emerging technologies with low but increasing penetration rates typically require some type of support, as might be provided through offsets markets, to compete effectively in the marketplace. For penetration rate analysis to provide a useful tool for additionality assessment, several fundamental questions need to be addressed. What do penetration rates represent and how can they be measured? How can additionality evaluation utilize penetration rates? For which sectors and project types are the use of penetration rates most promising? This article shows that penetration tests have a mixture of pluses and minuses, with greater relevance in certain market niches and regions. Reasonable ranges for penetration thresholds are discussed, along with partial crediting approaches to reduce ‘knife-edge’ effects. 相似文献
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Extremely Weak Mixing in Stable Conditions 总被引：1，自引：2，他引：1
Transport by extremely weak turbulence occurring on nights with clear skies and weak winds is examined from seven tower levels
of eddy-correlation data taken from each of two field programs. The very small flux is systematic, provided that the perturbations
are computed from a record-dependent averaging length, which must be as small as 10 s in very stable conditions. With traditional
methods for computing the flux, these fluxes were considered too small to estimate, in that the computed values behaved erratically.
For extremely weak turbulence, the fluxes decrease systematically with height and often indicate very shallow boundary-layer
depths on the order of 10 m. However, in one field program, the turbulence slowly increases with height above the surface
flux-based boundary layer apparently due to horizontal advection of stronger turbulence driven by modest surface heterogeneity.
For very weak turbulence, the eddy diffusivity for momentum is systematically greater than that for heat in both field programs.
The dependence of the turbulence strength and its variability with stability is examined in some detail. 相似文献
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It is clear that we need a climate adaptation policy agenda that is sensitive to the special political, social, and ecological circumstances of highly vulnerable regions, most of which are located in the African Sahel. While the existing literature on climate variability and climate change makes important theoretical contributions on development, vulnerability, and adaptation more broadly, with few exceptions it has not acknowledged that contradictions arise in addressing insecurities via the implementation of development, vulnerability reduction, and adaptation programs. An empirical assessment of how such contradictions are both driven by and negotiated in such programs is particularly useful if we are to design a more robust and grounded adaptation agenda. In this article, we focus on the paradigmatic case of Gambella in Ethiopia, a region that lies near the bottom of many development indices, but has also been the site for recent efforts to reduce climate vulnerability through village and agricultural modernization programs. Drawing on recent research in the region and on these programs, we demonstrate how the politics of development and adaptation lead to differential and contradictory impacts on four arenas of human security (a) elements of water security, (b) temporal aspects of water security and livelihoods security, (c) personal, state and community security, and (d) differentiated geographies economic security which privilege the national and international scale. The result of this complex political economy is that responses have served to increase rather than decrease tensions in the region. 相似文献
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50年以来, 中国气象科学研究院几代科学家致力于暴雨研究, 取得了令人瞩目的成就, 尤其是最近10年, 中国气象科学研究院主持了3个国家级研究项目开展我国南方暴雨研究, 其中包括华南前汛期暴雨的试验与研究, 长江中下游梅雨锋暴雨的试验与研究以及目前正在实施的研究范围更为广泛的我国南方致洪暴雨的试验与研究。通过上述项目的实施, 在华南前汛期暴雨与长江流域梅雨锋暴雨的三维结构、形成机理、遥感监测与探测中尺度暴雨的理论和方法以及自主发展配有三维同化系统的中尺度暴雨数值模式系统等方面均取得重要的研究成果, 有的已经在我国各级业务部门推广应用, 取得良好的经济与社会效益。目前正在实施的国家973项目, 针对引发我国南方致洪暴雨的β-中尺度强对流天气系统开展更为深入的试验与研究, 通过这些努力, 有望在提高我国暴雨的监测与预报、预警能力, 增强我国减灾防灾的总体实力做出更为重要的贡献。 相似文献
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We used a mixed-methods approach to assess the impact of a ‘forest-friendly’ titling program on previously untitled lands surrounding the Cuyabeno Reserve in Ecuador. Such programs are part of an increasing trend in tenure formalization intended to simultaneously strengthen tenure security, reduce deforestation, and open the door for more incentive-based conservation programs. We use quasi-experimental methods to estimate and compare the impact of titling on forest outcomes for lands that are titled with certain limitations on the ownership bundle of rights, alongside lands titled but without these restrictions. This quantitative analysis is paired with results from a series of focus group interviews with landowners to understand their experiences with the titling effort, particularly tied to the restrictions. Our results point to a statistically significant impact of titling with restrictions on reducing deforestation by 34%, whereas titling without such restrictions resulted in no significant effect. When we explore impacts according to annual deforestation rates, the results suggest that titled lands are buffered from the surges in deforestation that otherwise occurred on untitled lands and more broadly across the region. While ‘forest-friendly’ restrictions had more of an effect on forest outcomes than titled lands without, the insights shared by landowners suggest important concerns about equity and unjust burdens on current households that could risk livelihood options for future generations. 相似文献
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Metaphors are essential devices for fostering collective understanding and forging political commitment across diverse constituencies.
Due to the ineffectualness of prevailing linguistic representations of climate change, discursive entrepreneurs have begun
to invoke over the last few years new imagery that frames the challenge as tantamount to a protracted state of armed hostility.
This process of rhetorical militarization has been most prominent in the UK and it is subsequently creating opportunities
for policy makers to propose greenhouse gas-reduction strategies that are reminiscent of wartime austerity programs. A particular
approach that has attracted considerable interest is consumer regulation involving the imposition of annual quotas on personal
carbon emissions. This idea is best understood as a variant of the comprehensive civilian rationing programs that were deployed
during and after World War II. Because any eventual scheme to reduce greenhouse gas production at the individual level will
require consummate public legitimacy, this historical experience can serve as a useful reference point for the design of contemporary
interventions. To this end, the discussion highlights the methods that the British government used to sustain compliance with
the war and postwar consumption control regimes. Of special interest is the role that black market trading and other illicit
forms of commerce played during these periods. The conclusion reflects on the status of consumerism in contemporary lifestyles,
considers the risks of political interference with consumer prerogatives, and draws some insights from this earlier experience
with rationing 相似文献